Vulnerability · Published Jul 19, 2026 · Assigned by VulDB
CVE-2026-16203SourceCodester Class and Exam Timetabling System forCYS.php cross site scripting
Low 3.5
In plain English
A low-severity cross-site scripting in Class and Exam Timetabling System from SourceCodester. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 29% of all known vulnerabilities).
Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)0.3%top 71.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in SourceCodester Class and Exam Timetabling System 1.0. Affected by this issue is some unknown functionality of the file /forCYS.php. Such manipulation of the argument course leads to cross site scripting. The attack may be performed from remote. The exploit is publicly available and might be used.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| SourceCodester | Class and Exam Timetabling System | 1.0 |
Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R
References
- VDB-380019 | SourceCodester Class and Exam Timetabling System forCYS.php cross site scripting vdb-entry, technical-description
- VDB-380019 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-16203 | CVE Analysis and Report third-party-advisory
- Submit #857766 | sourcecodester Class and Exam Timetabling System V1.0 cross site scripting third-party-advisory
- https://github.com/AlbaDove/cve/issues/8 exploit, issue-tracking
- https://www.sourcecodester.com/ product